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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Computational Studies of the Countercurrent Multistage Extraction-Coupled Esterification Process of Oleic Acid With Methanol Using Excess Methanol As Extractant
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Computational Studies of the Countercurrent Multistage Extraction-Coupled Esterification Process of Oleic Acid With Methanol Using Excess Methanol As Extractant

机译：过量甲醇为萃取剂的油酸与甲醇逆流多级萃取-偶联酯化过程的计算研究

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摘要

A new process has been suggested for the esterification of oleic acid with methanol catalysed by a cation exchange resin,in which water is removed by simultaneous extraction with excess methanol as the extractant,and an algorithm for the simulation of countercurrent multistage extraction-coupled reaction processes has been proposed.The algorithm was applied to the new process and was proved to have good convergence.The calculated results showed that methyl oleate product with high yield and high purity could be obtained in the multistage countercurrent extraction-coupled esterification process.It was found that both yield and purity of methyl oleate product increase with the increase in the feed ratio of methanol/oleic acid as well as in the number of stages.A feed ratio more than six (in mole base) is required to obtain the purity and/or the yield higher than 95%.Purity of 99% and yield of 99% can be achieved in a four to nine stage process with a feed ratio of more than 8.5-16 when using 100% pure raw methanol.
机译：提出了一种新的阳离子交换树脂催化油酸与甲醇酯化的方法，该方法通过同时用过量甲醇作为萃取剂进行萃取来去除水，以及模拟逆流多级萃取-偶联反应过程的算法。计算结果表明，在多级逆流萃取-偶联酯化工艺中，可以得到高收率，高纯度的油酸甲酯产物。油酸甲酯产物的收率和纯度都随着甲醇/油酸进料比的增加以及阶段数的增加而增加。为了获得纯度和//需要进料比大于六（以摩尔计）或收率高于95％。在四到九步工艺中，当进料比大于8.5-16时，可以实现99％的纯度和99％的产率。使用100％纯甲醇。

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